MI 3101 EurotestAT: Safety and operational considerations
Battery and charging
11
Take into account handling, maintenance and recycling requirements that are
defined by related regulatives and manufacturer of alkaline or rechargeable
batteries!
Use only power supply adapter delivered from manufacturer or distributor of the test
equipment to avoid possible fire or electric shock!
2.2.1 New battery cells or cells unused for a longer period
Unpredictable chemical processes can occur during charging of new battery cells or cells
that were unused for a longer period (more than 3 months). Ni-MH and Ni-Cd battery cells
are affected to capacity degradation (sometimes called as memory effect). As a result the
instrument operation time can be significantly reduced.
Recommended procedure for recovering battery cells:
Procedure
Notes
Completely
charge
the battery.
At least 14h with in-built charger.
Completely
discharge
the battery.
Can be performed with normal work with the
instrument.
Repeat
the charge / discharge cycle for
at least
two times
.
Four cycles are recommended.
Complete discharge / charge cycle is performed automatically for each cell using external
intelligent battery charger.
Notes:
The charger in the instrument is a pack cell charger. This means that the battery
cells are connected in series during the charging. The battery cells have to be
equivalent (same charge condition, same type and age).
One different battery cell can cause an improper charging and incorrect discharging
during normal usage of the entire battery pack (it results in heating of the battery
pack, significantly decreased operation time, reversed polarity of defective cell,…).
If no improvement is achieved after several charge / discharge cycles, then each
battery cell should be checked (by comparing battery voltages, testing them in a cell
charger, etc). It is very likely that only some of the battery cells are deteriorated.
The effects described above should not be mixed with normal decrease of battery
capacity over time. Battery also loses some capacity when it is repeatedly charged /
discharged. The actual decrease of capacity versus number of charging cycles
depends on battery type and is provided in the technical specification from battery
manufacturer.
